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[Qemu-devel] [RFC V8 23/24] qcow2: Enable the deduplication feature.
From: |
Benoît Canet |
Subject: |
[Qemu-devel] [RFC V8 23/24] qcow2: Enable the deduplication feature. |
Date: |
Thu, 20 Jun 2013 16:26:31 +0200 |
---
block/qcow2.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/block/qcow2.c b/block/qcow2.c
index f7b94dd..bb7bf74 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -569,6 +569,13 @@ static int qcow2_open(BlockDriverState *bs, QDict
*options, int flags)
goto fail;
}
+ if (s->incompatible_features & QCOW2_INCOMPAT_DEDUP) {
+ ret = qcow2_dedup_init(bs);
+ if (ret < 0) {
+ goto fail;
+ }
+ }
+
#ifdef DEBUG_ALLOC
{
BdrvCheckResult result = {0};
@@ -1043,8 +1050,13 @@ fail:
static void qcow2_close(BlockDriverState *bs)
{
BDRVQcowState *s = bs->opaque;
+
g_free(s->l1_table);
+ if (s->has_dedup) {
+ qcow2_dedup_close(bs);
+ }
+
qcow2_cache_flush(bs, s->l2_table_cache);
qcow2_cache_flush(bs, s->refcount_block_cache);
@@ -1547,6 +1559,11 @@ static int qcow2_create2(const char *filename, int64_t
total_size,
}
qcow2_store_cleanup(&s->key_value_store);
+
+ ret = qcow2_dedup_init(bs);
+ if (ret < 0) {
+ goto out;
+ }
}
/* Want a backing file? There you go.*/
--
1.7.10.4
- [Qemu-devel] [RFC V8 10/24] qcow2: Add qcow2_dedup and related functions, (continued)
- [Qemu-devel] [RFC V8 10/24] qcow2: Add qcow2_dedup and related functions, Benoît Canet, 2013/06/20
- [Qemu-devel] [RFC V8 11/24] qcow2: Add qcow2_dedup_store_new_hashes., Benoît Canet, 2013/06/20
- [Qemu-devel] [RFC V8 14/24] qcow2: Load and save deduplication table header extension., Benoît Canet, 2013/06/20
- [Qemu-devel] [RFC V8 13/24] qcow2: Implement qcow2_compute_cluster_hash., Benoît Canet, 2013/06/20
- [Qemu-devel] [RFC V8 17/24] qcow2: Drop hash for a given cluster when dedup makes refcount > 2^16/2., Benoît Canet, 2013/06/20
- [Qemu-devel] [RFC V8 15/24] qcow2: Extract qcow2_set_incompat_feature and qcow2_clear_incompat_feature., Benoît Canet, 2013/06/20
- [Qemu-devel] [RFC V8 19/24] qcow2: Integrate deduplication in qcow2_co_writev loop., Benoît Canet, 2013/06/20
- [Qemu-devel] [RFC V8 16/24] block: Add qcow2_dedup format and image creation code., Benoît Canet, 2013/06/20
- [Qemu-devel] [RFC V8 22/24] qcow2: Add qcow2_dedup_init and qcow2_dedup_close., Benoît Canet, 2013/06/20
- [Qemu-devel] [RFC V8 21/24] qcow2: Integrate SKEIN hash algorithm in deduplication., Benoît Canet, 2013/06/20
- [Qemu-devel] [RFC V8 23/24] qcow2: Enable the deduplication feature.,
Benoît Canet <=
- [Qemu-devel] [RFC V8 24/24] qcow2: Enable deduplication tests, Benoît Canet, 2013/06/20
- [Qemu-devel] [RFC V8 18/24] qcow2: Remove hash when cluster is deleted., Benoît Canet, 2013/06/20
- [Qemu-devel] [RFC V8 20/24] qcow2: Serialize write requests when deduplication is activated., Benoît Canet, 2013/06/20